js、sql和python版本的乘法口诀对比

var val=''; 
for(var i=1; i<10; i++){
    for(var j=1; j<=i; j++){
       k = (i*j)<10?' '+(i*j):(i*j);
       val += j+' * '+i+' = '+k+'    ';
    }
    val+='
';
}
console.log(val)

declare @i int
declare @j int
declare @val varchar(1000)
set @i=1
set @j=1
set @val=''
while @i<10
    begin
        set @j=1
        while @j<=@i
            begin
                set @val += cast(@j as char(2)) + '* ' + cast(@i as char(2)) + '= ' + cast((@i*@j) as char(2)) +'   '
                set @j+=1
            end
        set @i+=1
        set @val +=char(13)  --换行
    end
print(@val)

for i in range(1,10):
    for j in range(1,i+1):
        print('{0}*{1}={2}'.format(j,i,(i*j)),end="	")
    print()